Classification of Xi and Yu 1990

G. †Discordichilus Cossmann 1918
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Discordichilus globrous Xi and Yu 1990
G. †Catazone Perner 1907
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Catazone changningensis Xi and Yu 1990
G. †Lophospira Whitfield 1886
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Lophospira luomianensis Xi and Yu 1990
G. †Girvania Longstaff 1924
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Girvania leijiatunensis Xi and Yu 1990